I believe your post is a cry for help. It's clear you're not happy or challenged enough. Perhaps you've simply been doing what you do for income and you're now trying to find some purpose.

That said, I have a question: How on earth can you barely contribute as a developer and not get noticed? No one watches commits? No milestone or deliverables? Do you report to technical manager?

I can understand if someone is on a desk pushing invisible paperwork (mangers etc) - but to me it seems like as a developer it's hard to imagine the coasting you describe.